TNF and atherosclerosis: Trans FA especially elaidic acid (C18:1trans 9), trans isomers of linoleic acid (trans C18:2 isomers) and trans 11 eicosanoic acid (C20:1 trans 11) are correlated with inflammatory parameters (IL-6, hs-CRP and TNF-α), indicators of oxidative stress (MDA and CD) and vascular severity, parameters associated to the development of atherosclerosis.